What's Eating Patrick? (S09E23)

S09E01 Patrick-Man! S09E02 Eek, an Urchin! S09E03 Bumper to Bumper S09E04 It's a SpongeBob Christmas! S09E05 Squid Defense S09E06 Plankton’s Pet S09E07 Little Yellow Book S09E08 Evil Spatula S09E09 Jailbreak! S09E10 Safe Deposit Krabs S09E11 Don’t Look Now S09E12 Séance Shméance S09E13 SpongeBob, You’re Fired S09E14 It Came from Goo Lagoon S09E15 Kenny the Cat S09E16 Yeti Krabs S09E17 Lost in Bikini Bottom S09E18 Tutor Sauce S09E19 The Executive Treatment S09E20 Squid Plus One S09E21 Pull Up a Barrel S09E22 Company Picnic S09E23 What's Eating Patrick? S09E24 Sanctuary! S09E25 Patrick! The Game S09E26 The Sewers of Bikini Bottom S09E27 SpongeBob LongPants S09E28 Larry's Gym S09E29 Mall Girl Pearl S09E30 Two Thumbs Down S09E31 The Fish Bowl S09E32 Married to Money S09E33 Sharks vs. Pods S09E34 CopyBob DittoPants S09E35 Sold! S09E36 Lame and Fortune S09E37 Sandy’s Nutmare S09E38 Food Con Castaways S09E39 Pineapple Invasion S09E40 Salsa Imbecilicus S09E41 Bulletin Board S09E42 Mutiny on the Krusty S09E43 Whirlybrains S09E44 Snail Mail S09E45 MermaidPants S09E46 The Whole Tooth S09E47 Goodbye, Krabby Patty?